Generally speaking, the suggestion to fire a coach is a misguided one. Or at least an underinformed one. We fans have almost zero insight into what a hitting or pitching coach actually is doing with the team on a day-to-day basis. We just see that Player X isn’t as good as he used to be, therefore the guy responsible for coaching him either broke him or is failing to fix him or both. In our eyes, that is fireable offense, even if there are other perfectly reasonable explanations (like injury) that explain the struggles that we simply aren’t aware of or are willfully ignorant of.